Issue 71980: Extensions code should use UTF-16 for user-visible Unicode strings

chrome/browser/extensions/sandboxed_extension_unpacker_unittest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/file_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/path_service.h"
 #include "base/scoped_temp_dir.h"
 #include "base/scoped_temp_dir.h"
 #include "base/string_util.h"
@@ skipping 31 matching lines @@
  public:
   virtual ~MockSandboxedExtensionUnpackerClient() {}
 
   MOCK_METHOD4(OnUnpackSuccess,
                void(const FilePath& temp_dir,
                     const FilePath& extension_root,
                     const DictionaryValue* original_manifest,
                     const Extension* extension));
 
   MOCK_METHOD1(OnUnpackFailure,
-               void(const std::string& error));
+               void(const string16& error));
 
   void DelegateToFake() {
     ON_CALL(*this, OnUnpackSuccess(_, _, _, _))
         .WillByDefault(Invoke(::OnUnpackSuccess));
   }
 };
 
 class SandboxedExtensionUnpackerTest : public testing::Test {
  public:
   virtual void SetUp() {
@@ skipping 148 matching lines @@
   OnUnpackSucceeded();
 
   // Check that there is newer _locales/en_US/messages.json file.
   base::PlatformFileInfo new_info;
   EXPECT_TRUE(file_util::GetFileInfo(messages_file, &new_info));
 
   EXPECT_TRUE(new_info.last_modified > old_info.last_modified);
 
   ASSERT_TRUE(TempFilesRemoved());
 }